FIELD: engines and pumps.
SUBSTANCE: engine comprises a compressor unit and a unit of working cylinders. At the same time it comprises combustion chambers, a crankcase with a conrod-free power converter of pistons movement, a sleeve group, a system of fuel mixture preparation and supply, suction and exhaust valves, a system of engine start-up, cooling and lubrication systems. According to the invention, the compressor unit is made as two or more staged with heat exchangers installed at each stage. The working unit is made of cylinders with working chambers and combustion chambers to prepare the fuel mix and burn it. At the same time the compressor unit and working units are connected to each other with an air duct through a receiver, a regenerator and an inlet valve and have rigid kinematic connection via the power conrod-free mechanism of pistons movement conversion.
EFFECT: improved efficiency of engine operation.
2 cl, 1 dwg
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